Cushion tire.



No. 710,595. Patented oef. 7, |902.

.44 f ,Human WITNESSES :INVENTOR v N0. 7|0,595. Patented Oct. 7, |902.

C. MILLER. cusHloN TIRE.

(Application med one. 29, 1901.) (No Model.) 2 Sheets-Sheet 2.

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UNTTnn STATES PATENT Cruce.

CHARLES MILLER, OF BINGHAMTON, NEW YORK.

cession-TIRE.

SPECIFCATION forming part of Letters atent No. 710,595, dated October '7, 1902.

Application filed October 29, 190i. Serial No. 80,392. (No model.)

To all whom, it 711mg/ concern:

Be it known that l, CHARLES MILLER, acitizen of the United States, residing at Binghamton, inthe county of Broome and State of New York, have invented new and useful Inr provemenis in Cushion-Tires for Wheels, of which the Afollowing is a specification.

This invention relates io wheels having cushion-tires; and it consists in certain improvements in the construction of such tires, as hereinafter described and claimed. Y

In the accompanying drawings, Figure l represents a sectional side View of a part of a wheel provided with a cushion-tire constructed according to my invention. Fig. 2

is a vertical sectional view showing the cushion-tire made fast on the wheel-rim. Fig. 3 also shows in transverse section the cushiontire, the parts being in position to be forced in place on the rim and secured. Fig. 4 is an end view of one of the caps or clips employed to secure the covering to the wheelrim. Fig. 5 illustrates th'e caps in plan and sectional views. Fig. 6 is a bottom plan view of a core referred to herein. Fig. 7 is a plan View of the under side of a block, which is placed in the cushion for the purpose of regulating pressure. Fig. 8 shows a modication in the construction of the cushion-tire and wheel-rim in sectional side view, a flanged rim of metal being employed in place of a wooden rim, the block being dispensed with. Fig. 9 shows in cross-section modiiications of wheel-rim, core, and cap, the cap and outer casing not being entirely7 forced down to the flanged wheel-rim. Fig. l0 is also a crosssection showing the parts shown in Fig. 9 and a block in connection therewith. Fig. ll shows a bottom plan of the modified form of the core. Fig. l2 shows several of the caps referred to connected or made in one piece.

Referring to the drawings, A designates a wooden wheel-rim on which is mounted the cushion-tire, which is constructed in sections, as shown. Y

B indicates a core composed of rubber or other resilient material, said core being hollow with a chambered or recessed interior and flaring somewhat outward, as seen in Fig. l, so that the cushion-sections are inclined toward each other endwise.

C indicates a block of wood or other suitable material, said block being placed on the rim A and the core B resting` on said block. Bearing-plates C are set in the lower side of the block to form bearings .for the points of the screws s, as hereinafter stated.

D indicates the covering or casing of the core B, said casing being of canvas and rubber or other suitable elastic material. A wire e or stiifened cord is secured to and along the edge of the casing D, so that when the latter is drawn down over the core B to the rim A a flange is formed at the edge of the casing and the latter may be secured to said rim by means of cap l) at the base of the cushion. The cap l) (shown in Fig. 5) is formed of a plate or frame of metal, having a central opening F, conforming to the base of the cushionsection, and notches d at its extremities. When in place, it covers the iiange formed by the wire e at the edge ofthe casing D, and the cap being formed to grasp said wire may be secured by screws f, which extend d0wnward into the threaded studs g, which are set in the rim, as shown, each screw f serving to secure the adjoining ends of the two caps.

For the adjustment of the block C the screws s are mounted in the rim A, said screws extending upward to engage with the nuts 7i, set in the outer surface of the said rim and to bear against the plates c.

The block C conforms to the form and size of the core B at the bottom of the core and is of suitable thickness, according to the pressure required. The block may be raised or lowered to regulate the pressure against the core B and the resilience of the cushion by means vof the adjusting-screws s, and it serves also to keep the flange of the casing B, formed by the wire @,vin connection with the cap b and to hold the sides and ends of the casing D rmly when the cap b is forced down. By thus regulating the resilience of the cushion by means of the recessed 0r perforated core and adjustablev block, substantially the same effect is produced as that which results from the use of a pneumatic tire. Vhen a pneumatic tire is not iniiated according to the weight it is to carry, it runs hard, ybeing wantin g in resilience, and the tire with the perforated or recessed core with no way to regulate the pressure on the core acts in like IOO manner with the pneumatic tire when not properly inflated; but with my devices for regulating the pressure the latter may be readily increased or diminished, as desired.

A modification in the construction of the device is shown in Fig. 8, a flanged wheel-rim A of metal being shown instead of a rim of wood, the pressure-block C and its connections being omitted, and a core B having vertical cylindrical recesses, which are open at the bottom and closed at the top, is substituted for the core B.

Fig. 9 shows the modified forms of wheelrim, core, and cap in cross-section, the outer casing not being entirely forced down on the core, and the cap being in position to be forced down within the iianges of the wheelrim.

Fig. 10 shows in cross-section the modified parts shown in Fig. 9 and a block in position under the core.

Fig. l1 shows a bottom plan of the'modified form of the core.

Fig. 12 shows a plan view of several of the caps referred to made in one piece, whereby several sections of the cushion-tire may be secured at one operation.

With the construction shown in Fig. 1, the cap b being adapted to grasp the stiened edge of the outer casing D, so that the latter may be forced down to and over the core B and secured to the rim A by means of the block C, and the adj usting-screws s, the pressure on the core, and consequently the resilience of the cushion, may be increased or diminished, as required.

I claiml. The combination with the rim of a wheel, of a recessed co're and a block on which said core rests, said block resting on said rim, an

outer casing for said core and means for securing said casing to said rim and adjusting devices connected with said rim whereby said block may be pressed Outward and said core likewise pressed outward into said outer casing, substantially as and for the purposes described.

2. The combination with the rim of a wheel of a cushion-tire formed in sections each of which contains a block resting on the rim of the wheel, a core mounted on said block, a flexible casing for said core, said casing having a wire or stiffened cord secured along its edge, and a series of caps adapted to grasp the edge of said casing and to be forced down so as to bring down the said casing over said core and secure it to the wheel-rim, substan- I tially as set forth and described.

3. The combination with a wheel-rim of wood, of a cushion-tire formed in several sections, each of,which has a block mounted on said rim, a core of resilient material on said block, an outer casing for said core having a stiened edge, a cap b for forcing said casing down on said core, and adj usting-screws s whereby said block may be raised from the wheel-rim as desired, substantially as and for the purposes set forth.

4. The combination with the rim of a wheel, of a core of resilient material provided with a iieXible casing, and mechanism for forcing said core outward into said casing whereby the compression of said core may be either increased or diminished.

In testimony whereof I aiiix my signature in presence of two witnesses.

CHARLES MILLER.

Witnesses:

JOHN O. BRUCE, CLARENCE E. GooDRIcH. 

